Hi Stephen,
Thank you for the notice.
I've been waiting for a comment about the below patch targeted to v4.7 from Ted.
Meanwhile, I intended to prepare -next for that patch in advance.
Surely, once I get a sense that I need to consider v4.8, I'll drop this patch
for -next right away.
Thanks,
On Mon, May 09, 2016 at 09:36:46AM +1000, Stephen Rothwell wrote:
> Hi Jaegeuk,
>
> Today's linux-next merge of the f2fs tree got a conflict in:
>
> fs/ext4/ext4.h
>
> between commit:
>
> c8585c6fcaf2 ("ext4: fix races between changing inode journal mode and ext4_writepages")
>
> from the ext4 tree and commit:
>
> a618a2a1dda4 ("ext4 crypto: migrate into vfs's crypto engine")
>
> from the f2fs tree.
>
> I fixed it up (see below) and can carry the fix as necessary. This
> is now fixed as far as linux-next is concerned, but any non trivial
> conflicts should be mentioned to your upstream maintainer when your tree
> is submitted for merging. You may also want to consider cooperating
> with the maintainer of the conflicting tree to minimise any particularly
> complex conflicts.
>
> P.S. I would expect to see a Reviewed-by or Acked-by from the ext4
> maintainer on that f2fs tree commit ...
>
> --
> Cheers,
> Stephen Rothwell
>
> diff --cc fs/ext4/ext4.h
> index ba5aecc07fbc,91b62e54ef51..000000000000
> --- a/fs/ext4/ext4.h
> +++ b/fs/ext4/ext4.h
> @@@ -32,8 -32,8 +32,9 @@@
> #include <linux/percpu_counter.h>
> #include <linux/ratelimit.h>
> #include <crypto/hash.h>
> + #include <linux/fscrypto.h>
> #include <linux/falloc.h>
> +#include <linux/percpu-rwsem.h>
> #ifdef __KERNEL__
> #include <linux/compat.h>
> #endif
> @@@ -1509,9 -1498,10 +1502,13 @@@ struct ext4_sb_info
> struct ratelimit_state s_err_ratelimit_state;
> struct ratelimit_state s_warning_ratelimit_state;
> struct ratelimit_state s_msg_ratelimit_state;
> +
> + /* Barrier between changing inodes' journal flags and writepages ops. */
> + struct percpu_rw_semaphore s_journal_flag_rwsem;
> + #ifdef CONFIG_EXT4_FS_ENCRYPTION
> + u8 key_prefix[EXT4_KEY_DESC_PREFIX_SIZE];
> + u8 key_prefix_size;
> + #endif
> };
>
> static inline struct ext4_sb_info *EXT4_SB(struct super_block *sb)
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